Product Description

•The Tele Vue Dioptrx astigmatism correcting lens assembly compensates for astigmatism.•Employs only the finest multi-coated glass in anodized aluminum housings with rubber eye guards.•The Tele Vue Dioptrx attaches to over 20 Televue long eye-relief eyepieces.•This model has a 1.75 DIopter and is rotatable for best orientation.

Televue Dioptrx Astigmatism Correcting Lens Assembly - 1.75 DiopterThe visual experience in astronomy is maximized by stripping away limitations: the limitations of the observing location (dark skies and steady seeing)... the limitations of the telescope (aperture, field, resolution, and contrast)... the limitations of the eyepiece (field, resolution, and contrast)... andthe limitations of our eyesight (e.g. astigmatism) Televue has historically been dedicated to overcoming the first three of these limitations:

•With wide angle, flat field telescopes easily portable for traveling to great observing locations •Matching ultra-wide angle eyepieces with full field image quality to generate what we call “spacewalk” viewing •And a variety of long eye relief eyepieces to allow eyeglass wearers to enjoy the maximum visual experience

To overcome the fourth limitation (astigmatism), Televue has developed a corrector which fits directly onto the eyepiece. Just as Dobsonian owners could not fully appreciate the performance of Televue eyepieces until installing the Paracorr to compensate for mirror coma, the majority of the population (which has some eyesight limitations due to astigmatism) had no way to correct for this except by wearing eyeglasses. That is until now. Introducing…DIOPTRX Astigmatism Correcting Lens Accessory, which extracts the maximum visual performance from matching eyesight to eyepiece. Televue DIOPTRX lenses attach to the top of over 20 long eye-relief Televue eyepieces to compensate for eyesight astigmatism and are available in ¼ diopter steps, from ¼ diopter up to 2½ diopters. A series of engraved letters on the barrel helps to monitor orientation. All lenses are multi-coated glass in anodized aluminum housings with rubber eye guards. Observers do not need eyeglasses to compensate for near- or far-sightedness, since telescopes can focus out these limitations. Further, other eyeglass characteristics, such as bi-focal, tri-focal, or vari-focal (progressive) designs are severely detrimental when trying to view a large field at infinity. In the past, it was generally recommended getting a special pair of “astronomy-only” eyeglasses that only has your astigmatism correction and multi-coatings. However, frame styles may still limit field sizes and be uncomfortable in certain telescope orientations.

Specifications

Name

TeleVue - 1.75 DIOPTRX Astigmatism Correcting Lens

Manufacturer

TeleVue

Model

DRX-0175

Custom Stock Status

Available - Ships in 3-5 Days

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